Stay a decent distance with a power washer and degreaser let it dry and spray it down with stoner trim shine do it all the time looks great and no problems

 

Scrubbing Bubbles over the whole engine bay and wipe down with a microfiber. It will look brand new. It is safe for the rubber and doesn't hurt the electronics.

 

I recently talked to my mechanic about this. He said if you use the power washer at a car wash, try not to spray near the spark plugs, and keep the truck running when you do it. Maybe keeping the truck hot will evaporate any moisture that gets in places it's not supposed to be??

 

Yeah um a hot motor and water dnt mix thats askin for trouble

 

Yeah, um, what cools your engine?

 

It's not cooled by 47 degree ground water. It's cooled by a coolant and water mix that gradually warms with the engine. "Shock" cooling hot metal (castings in particular) can cause rapid contraction and possible cracking.

 

I get your thinking, but I'm not sure it works that way. Don't people buy snorkel kits so they can drive through deep water? Just sayin', bro!

 

True 'dat. A lot would depend on how quickly and evenly the engine gets cooled.

The previous post regarding leaving the engine running while spraying has some logic behind it also. The water jacket with hot coolant running through it would minimize the differences in temperature when the water is being sprayed on the outside.

I personally don't believe it's as big of an issue with current materials and casting technologies. However, the safest move is to not do it so that's the side I would stick to.

To be certain, we should seek volunteers who would heat their engines to max temp then dump ice water on them! Anyone?

 

Well from my guess is that guys got some money i mean were just tryin to save u a headache but if u wanna do it have at it bud

 

If dirty, I lightly mist with a APC making sure the electrics are covered.
Something like stretchable plastic food covers or plastic wrap will work.
Scrub with a small brush to remove and loosen any grease and grime.
Then a VERY light water (away from electrics) to remove remaining APC

I have used many "Engine Detail" products over the years including CD2.
My favorite "look" is Sonus Trim & Motor Kote a soft matte looking shine.

Here is a pic of my engine bay "before". It looks better now. its cleaned.